:root {
            --primary: #00b4d8;
            --primary-dark: #0077b6;
            --primary-light: #90e0ef;
            --accent: #00f5d4;
            --bg-light: #f4f9f9;
            --bg-white: #ffffff;
            --text-dark: #121e2a;
            --text-muted: #536471;
            --border-color: #e1eaf0;
            --max-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 重置样式 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 通用容器 */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--text-dark);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-muted);
            margin-top: 10px;
            font-size: 1.1rem;
        }

        /* 渐变文本 */
        .gradient-text {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            box-shadow: 0 4px 15px rgba(0, 180, 216, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 180, 216, 0.4);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary-dark);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: rgba(0, 180, 216, 0.05);
            transform: translateY(-2px);
        }

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-area img {
            height: 40px;
            display: block;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-dark);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 20px;
            align-items: center;
        }

        .nav-link {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* 首屏 Hero Section (无图片) */
        .hero-section {
            background: radial-gradient(circle at 80% 20%, rgba(0, 245, 212, 0.08) 0%, transparent 40%),
                        radial-gradient(circle at 10% 80%, rgba(0, 180, 216, 0.08) 0%, transparent 40%),
                        var(--bg-white);
            padding: 100px 0;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-badge {
            background: rgba(0, 180, 216, 0.1);
            color: var(--primary-dark);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 25px;
            border: 1px solid rgba(0, 180, 216, 0.2);
        }

        .hero-section h1 {
            font-size: 3rem;
            line-height: 1.25;
            margin-bottom: 25px;
            font-weight: 800;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .data-stats-section {
            background: var(--bg-white);
            padding: 50px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            text-align: center;
        }

        .stat-card {
            padding: 20px;
            border-radius: 12px;
            background: var(--bg-light);
            border: 1px solid rgba(0, 180, 216, 0.05);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 180, 216, 0.05);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* 关于我们 & 平台介绍 */
        .about-section {
            background: var(--bg-white);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 15px;
            font-size: 1rem;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .about-feat-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .about-feat-item svg {
            width: 24px;
            height: 24px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .about-feat-text h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

        .about-feat-text p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .about-badge-card {
            background: linear-gradient(135deg, rgba(0, 180, 216, 0.05), rgba(0, 245, 212, 0.05));
            border: 2px dashed var(--primary-light);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
        }

        .about-badge-card h4 {
            font-size: 1.5rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
        }

        /* 全平台 AIGC 服务 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.05);
        }

        .service-card:hover::before {
            height: 100%;
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 180, 216, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tag {
            font-size: 0.75rem;
            padding: 4px 8px;
            background: var(--bg-light);
            border-radius: 4px;
            color: var(--text-muted);
        }

        /* 标签云组件 (AI平台) */
        .tags-cloud-section {
            background: var(--bg-white);
            padding: 60px 0;
            text-align: center;
        }

        .tags-cloud-section h3 {
            font-size: 1.5rem;
            margin-bottom: 25px;
        }

        .tags-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }

        .tag-item {
            padding: 8px 16px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 标准化流程 & 技术标准 (时间线) */
        .process-timeline {
            position: relative;
            max-width: 800px;
            margin: 40px auto 0 auto;
        }

        .process-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 20px;
            width: 4px;
            height: 100%;
            background: var(--border-color);
        }

        .timeline-item {
            position: relative;
            padding-left: 50px;
            margin-bottom: 40px;
        }

        .timeline-badge {
            position: absolute;
            left: 10px;
            top: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary);
            border: 4px solid var(--bg-light);
            z-index: 2;
        }

        .timeline-content {
            background: var(--bg-white);
            border-radius: 12px;
            padding: 20px;
            border: 1px solid var(--border-color);
        }

        .timeline-content h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .timeline-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 全行业解决方案 & 服务网络 */
        .solutions-section {
            background: var(--bg-white);
        }

        .solutions-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .tab-btn {
            padding: 10px 20px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .solution-card {
            background: var(--bg-light);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }

        .solution-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .solution-list {
            list-style: none;
            margin-top: 15px;
        }

        .solution-list li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .solution-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: bold;
        }

        /* 对比评测 & 推荐 */
        .comparison-section {
            background: var(--bg-white);
        }

        .score-badge {
            background: linear-gradient(135deg, #ff9f1c, #ffbf69);
            color: #fff;
            padding: 15px 30px;
            border-radius: 50px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 0 5px 15px rgba(255, 159, 28, 0.3);
            margin-bottom: 30px;
        }

        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            background: var(--bg-white);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .comparison-table th, .comparison-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background: var(--bg-light);
            font-weight: 700;
            color: var(--text-dark);
        }

        .comparison-table tr:hover td {
            background: rgba(0, 180, 216, 0.02);
        }

        .highlight-col {
            background: rgba(0, 180, 216, 0.05);
            font-weight: 600;
        }

        /* Token 比价参考 */
        .token-price-section {
            background: var(--bg-light);
        }

        /* 职业技术培训 & 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .training-card {
            background: var(--bg-white);
            border-radius: 16px;
            border: 1px solid var(--border-color);
            padding: 30px;
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .training-card h4 {
            font-size: 1.2rem;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .training-meta {
            font-size: 0.85rem;
            color: var(--primary-dark);
            font-weight: 600;
            background: rgba(0, 180, 216, 0.1);
            padding: 3px 10px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 15px;
        }

        /* 案例展示区 (含图片) */
        .cases-section {
            background: var(--bg-white);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .case-card {
            background: var(--bg-light);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .case-image-box {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            background: #eee;
        }

        .case-image-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-image-box img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 20px;
        }

        .case-tag {
            font-size: 0.8rem;
            color: var(--primary-dark);
            font-weight: 600;
            margin-bottom: 5px;
            display: block;
        }

        .case-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        /* 用户评论区 (6个评论) */
        .reviews-section {
            background: var(--bg-light);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .review-card {
            background: var(--bg-white);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .review-quote {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            position: relative;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary-dark);
        }

        .review-details h5 {
            font-size: 0.95rem;
            color: var(--text-dark);
        }

        .review-details span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 帮助中心 & FAQ折叠面板 & AI术语 */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

        .faq-trigger {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            padding: 10px 0;
            cursor: pointer;
        }

        .faq-trigger::after {
            content: "+";
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-trigger::after {
            transform: rotate(45deg);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-muted);
            font-size: 0.95rem;
            padding-right: 20px;
        }

        .faq-item.active .faq-content {
            max-height: 200px; /* 大概安全高度 */
            padding-top: 10px;
            padding-bottom: 10px;
        }

        /* 行业资讯 / 知识库 / 文章列表 */
        .articles-section {
            background: var(--bg-light);
        }

        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 20px;
        }

        .article-item {
            background: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-item h4 {
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

        .article-item h4 a {
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
        }

        .article-item h4 a:hover {
            color: var(--primary);
        }

        .article-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 15px;
        }

        /* 联系我们 & 加盟代理 & 表单 */
        .contact-section {
            background: var(--bg-white);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info-block {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(0, 180, 216, 0.1);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-text h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

        .contact-text p, .contact-text a {
            font-size: 0.95rem;
            color: var(--text-muted);
            text-decoration: none;
        }

        .contact-qr-group {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .qr-card {
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            background: var(--bg-light);
            flex: 1;
            min-width: 140px;
        }

        .qr-card img {
            width: 100%;
            max-width: 120px;
            height: auto;
            display: block;
            margin: 0 auto 10px auto;
        }

        .qr-card p {
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* 表单样式 */
        .form-card {
            background: var(--bg-light);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

        .form-card h3 {
            font-size: 1.5rem;
            margin-bottom: 25px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.9rem;
            font-weight: 600;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            background: var(--bg-white);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        /* 友情链接与页脚 */
        footer {
            background-color: var(--text-dark);
            color: #fff;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--primary);
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: #a0aec0;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-links-row {
            border-top: 1px solid #2d3748;
            padding-top: 25px;
            margin-bottom: 25px;
        }

        .footer-links-row h5 {
            margin-bottom: 15px;
            color: #a0aec0;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links a {
            color: #a0aec0;
            text-decoration: none;
            transition: var(--transition);
        }

        .friend-links a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid #2d3748;
            padding-top: 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .footer-bottom p {
            color: #a0aec0;
        }

        .ai-page-home-link {
            color: #fff !important;
            font-weight: 700;
        }

        /* 浮动客服入口 */
        .float-contact {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .float-btn:hover {
            background: var(--primary-dark);
            transform: scale(1.05);
        }

        .float-qr-hover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: var(--transition);
            width: 160px;
            text-align: center;
        }

        .float-qr-hover img {
            width: 100%;
            height: auto;
            margin-bottom: 5px;
        }

        .float-qr-hover p {
            color: var(--text-dark);
            font-size: 0.75rem;
            margin: 0;
        }

        .float-btn:hover .float-qr-hover {
            opacity: 1;
            visibility: visible;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .about-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 30px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                transform: translateY(-150%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }

            .nav-menu.active {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .menu-toggle {
                display: flex;
            }

            section {
                padding: 50px 0;
            }
        }